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127 lines
4.5 KiB
127 lines
4.5 KiB
//======================================================================== |
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// GLFW - An OpenGL framework |
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// Platform: Carbon/AGL/CGL |
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// API Version: 3.0 |
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// WWW: http://www.glfw.org/ |
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//------------------------------------------------------------------------ |
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// Copyright (c) 2002-2006 Marcus Geelnard |
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// Copyright (c) 2003 Keith Bauer |
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// Copyright (c) 2003-2010 Camilla Berglund <elmindreda@elmindreda.org> |
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// |
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// This software is provided 'as-is', without any express or implied |
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// warranty. In no event will the authors be held liable for any damages |
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// arising from the use of this software. |
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// |
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// Permission is granted to anyone to use this software for any purpose, |
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// including commercial applications, and to alter it and redistribute it |
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// freely, subject to the following restrictions: |
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// |
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// 1. The origin of this software must not be misrepresented; you must not |
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// claim that you wrote the original software. If you use this software |
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// in a product, an acknowledgment in the product documentation would |
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// be appreciated but is not required. |
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// |
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// 2. Altered source versions must be plainly marked as such, and must not |
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// be misrepresented as being the original software. |
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// |
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// 3. This notice may not be removed or altered from any source |
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// distribution. |
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// |
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//======================================================================== |
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#include "internal.h" |
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//======================================================================== |
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// _glfwVideoModesEqual() - Compares two video modes |
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//======================================================================== |
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static int _glfwVideoModesEqual( GLFWvidmode* first, |
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GLFWvidmode* second ) |
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{ |
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if( first->Width != second->Width ) |
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return 0; |
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if( first->Height != second->Height ) |
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return 0; |
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if( first->RedBits + first->GreenBits + first->BlueBits != |
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second->RedBits + second->GreenBits + second->BlueBits ) |
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return 0; |
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return 1; |
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} |
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//======================================================================== |
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// _glfwCGToGLFWVideoMode() - Converts a CG mode to a GLFW mode |
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//======================================================================== |
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static void _glfwCGToGLFWVideoMode( CFDictionaryRef cgMode, |
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GLFWvidmode* glfwMode ) |
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{ |
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int bitsPerSample; |
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CFNumberGetValue( CFDictionaryGetValue( cgMode, kCGDisplayWidth ), |
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kCFNumberIntType, |
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&(glfwMode->Width) ); |
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CFNumberGetValue( CFDictionaryGetValue( cgMode, kCGDisplayHeight ), |
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kCFNumberIntType, |
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&(glfwMode->Height) ); |
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CFNumberGetValue( CFDictionaryGetValue( cgMode, kCGDisplayBitsPerSample ), |
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kCFNumberIntType, |
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&bitsPerSample ); |
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glfwMode->RedBits = bitsPerSample; |
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glfwMode->GreenBits = bitsPerSample; |
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glfwMode->BlueBits = bitsPerSample; |
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} |
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//======================================================================== |
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// _glfwPlatformGetVideoModes() - Get a list of available video modes |
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//======================================================================== |
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int _glfwPlatformGetVideoModes( GLFWvidmode *list, int maxcount ) |
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{ |
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int i, j, maxModes, numModes; |
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GLFWvidmode mode; |
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CFArrayRef availableModes = CGDisplayAvailableModes( kCGDirectMainDisplay ); |
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CFIndex numberOfAvailableModes = CFArrayGetCount( availableModes ); |
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numModes = 0; |
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maxModes = ( numberOfAvailableModes < maxcount ? |
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numberOfAvailableModes : |
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maxcount ); |
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for( i = 0; i < maxModes; ++i ) |
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{ |
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_glfwCGToGLFWVideoMode( CFArrayGetValueAtIndex( availableModes, i ), |
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&mode ); |
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// Is it a valid mode? (only list depths >= 15 bpp) |
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if( mode.RedBits + mode.GreenBits + mode.BlueBits < 15 ) |
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continue; |
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// Check for duplicate of current mode in target list |
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for( j = 0; j < numModes; ++j ) |
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{ |
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if( _glfwVideoModesEqual( &mode, &(list[j]) ) ) |
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break; |
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} |
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// If empty list or no match found |
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if( numModes == 0 || j == numModes ) |
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list[numModes++] = mode; |
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} |
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return numModes; |
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} |
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//======================================================================== |
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// glfwGetDesktopMode() - Get the desktop video mode |
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//======================================================================== |
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void _glfwPlatformGetDesktopMode( GLFWvidmode *mode ) |
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{ |
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_glfwCGToGLFWVideoMode( _glfwDesktopVideoMode, mode ); |
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} |
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